pdf.js/web/viewer.html ridiculously slow since commit 74b31ab

[jawatech]

Attach (reccomened) or Link to PDF file here:

Configuration:

• Web browser and its version:
  chrome 61.0.3163.100 64-bit
• Operating system and its version:
  win10
• PDF.js version:
  v1.8.188
• Is an extension:
  N
  Steps to reproduce the problem:
• open pdf.js/web/viewer.html
• ridiculously slow since commit 74b31ab18f1a368963f7337e2b7313a5f335e618

What is the expected behavior? (add screenshot)
should load like immediately
What went wrong? (add screenshot)
load after about 10 seconds
Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):
N.A.

I see many changes made in web folder. Can't pinpoint the exact cause. Any ideas?

[yurydelendik]

Please provide exact steps to reproduce. If you are trying to use PDF.js directly from this repo without compiling/building it via gulp generic, then some slow down is expected.

[yurydelendik]

10 seconds

It looks like the viewer is run in the development mode. 10 seconds is sounds a reasonable time to recompile es6 sources to legacy es5. Closing as answered.

[Snuffleupagus]

I looks like the viewer is run in the development mode.

Ensure that you're using a version of PDF.js that includes PR #8364, since that should have improved load times quite a bit in development mode.

[jawatech]

@yurydelendik indeed, I found the built files in pdf.js\build\generic\web and it works as expected.
@Snuffleupagus would keep your advice in mind when i monkey patch again ;p